Carpathians

Abstract

The seismic observations in the Carpathian region in 2013, which were conducted, as before, by two organizations from two states: in Ukraine, by the seismicity department of the Carpathian region of the Institute of Geophysics of the National Academy of Sciences of Ukraine, and in Moldova by the seismology laboratory of the Institute of Geology and Seismology of the Academy of Sciences of Moldova are described. There were 19 digital stations with a processing center in Lviv, Ukraine, and 6 stations with a center in Chisinau, Moldova. Various programs, local hodographs, and magnitudes were used. The consolidated catalog of earthquakes is created in Lviv. The map of epicenters and the table of the distribution of earthquakes of differ-ent classes by regions are given. The total number of earthquakes in 2013 was N=98 in the range of КР=5.7–14.1 and the depth interval of hypocenters h=1–150 km with total seismic energy Е=1.331014 J. Of these, 19 earthquakes with depths h=80–160 km is located in the Vrancea zone. Two maximum earth-quakes with КР=14.1 and КР=12.3 were recorded on October 6 and 15 in the Vrancea mountains with h=139.8 and 140.9 km. In Forecarpathians and Transcarpathia all earthquakes are weaker. The most significant event in Transcarpathia was the earthquake on April 4, 2013, with КР=8.4 in the area of «Nizhnее Selishche» seismic station. The earthquake source is located in the earth's crust at a depth of h=1.7 km. The earthquake was felt by the population of the Village Nizhnее Selishche with an intensity I=3–4. In general, in all seismic active zones of the Carpathians in 2013, there was a slight increase in the level of seismicity compared with that in 2012.

SENSIBLE EARTHQUAKES 2013 in MOLDOVA: August 11 with КР=11.8, October 6 with КР=14.1, October 15 with КР=12.3 (Romania–Moldova)

“…1. Карта эпицентров землетрясений Карпат за 2013 г. из [1] 1 -энергетический класс; 2 -глубина гипоцентра h, км; 3, 4 -сейсмическая станция Карпатского региона и прилегающих территорий соответственно; 5 -число землетрясений с одинаковым эпицентром; 6 -граница сейсмоактивного района; название и номер района: Северо-Западный (№ 1), Вранча (№ 2), Южные Карпаты (№ 3), Банат (№ 4), Буковина (№ 5), Кришана№ 6), Трансильвания (№ 7), Бакэу (№ 8).…”

“…Для [1,3]. Между этими событиями отмечено еще три землетрясения с ML=3-3,5 [9,15] Однако наиболее обширные макросейсмические проявления возникли от главного толчка -6 октября, вызвавшего сотрясения на территории четырех государств -в Румынии, на севере Болгарии, на юго-западе Украины и в Молдове.…”